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E-Link installation and comissioning is rather straight forward if you have worked through manual first.

The DC Bus is a rather large reservoir of electrical energy. Keep in mind that it is able to power two compressors. Doing the math. I=U/R=20V/0.01Ohm (assumed value, goes probably more towards zero...

Yes, you are right. Forgot to mention it.

Pro:
Ultraquiet
High efficiency

Con:
High price
Very sophisticated
Large amount of electronic

I am sure, somebody does........;-)
Which product range are you talking about and what do you want to know?

Then you probably refer to the YVAA (air cooled vsd driven screw).

Easiest way, max. cooling capacity compressor converted into kW (tons*3,517) + max. absorbed electrical power of the compressor in kW. The result is in kW then. To get the tons just divide by 3,517....

The most important thing you need to know about chillers is, that water freezes at 32°F and static water freezes far quicker then anything else. Therefore never charge a water chiller with liquid...

You are right, but customers usually refer to the slide valve position only as indication. The corresponding motor current will tell you the truth. We don`t know if the compressor is still running,...

Could be the potentiometer as well. The chiller the YCCH usually belongs to is YS.

I would discribe them as TEXV (thermal electronic expansion valves).

If the motor is rated 575VAC @ 60Hz, the drive should provide 575VAC @ 60Hz. Usually a motor accepts a +/- 10% variation in input voltage which would be 632VAC. You measured 650VAC. If you apply...

VFD compressor has benefits but disadvantages as well. Here a few:

+ superior water temperature control
+ increased part load efficiency
+ soft start
+ reduced compressor cycling
+ reduced...

The guys working on absorbers do know them quite well (i don´t know how they call it). Its just a glass bottle (cylindrical or tapered) with a tapered (sealing) rubber plug on top. But it could be...

It`s not the voltage that kills a motor. It`s always the current. I haven`t seen an compressor motor killed by megging him. But most compressor manufacturers recommend not to megger with a system in...

On most compressors the oil charge connection and the dip tube inside do not reach fully to the bottom of the compressor. A lot of the s... remains there when you just push the oil out, using this...

Has anyone got the service manual for the LSC screw. The Hartford internet page doesn´t issue that.

Agree with klove, the only qualified repair would be to replace or completely strip / rebuild the compressor if it was full of water. If the frozen tubes are less then 10% of the total just plug them...

Is it correct to assume that the ton-hrs represents the total cooling energy used for the specified months?

Yes, if the record is from a months periond.

Also is there a way to figure out what...

I fully agree with the comments before and want to add a few more questions, -which oil is used with the compressor?
-what is the saturated pressure / temperature in the chiller after it has been...

Best thing to do is to charge in accordance with the liquid subcooling (and suction superheat if it has no TXV or EXV) und full load conditions. Usually reverse cycle (air to water) heatpumps do have...

What type of J compressor (4,5,6 or 8 cylinder long stroke, short stroke, R22)?

I think it is better to contact the spare parts department with the type and serial number of the vsd available. To many different drives and revisions are out there. The spare parts manual uploaded...

I have never heard of such a large dept or financial problems. I worked for York in Europe and we made a pretty good business through the years. I suspect that buying Sabroe wasn`t the good deal that...

I like those...........

If you want to learn about York and it´s history / role in the industry, read this:
http://www.amazon.com/Legend-York-International-Jeffrey-Rodengen/dp/0945903170
Just keep in mind that they´ve got...

This setting does mean 195 Amps (1+2+64+128). This is a protection for motor overload. From my experience the display of the MP should read HA 195 (please refer to the uploaded extracted page from a...

Which dip switches are on? With the compressor off, the MP module usually displays the setting of the dip switches (which should be of course at least 3 digits). With the connections M1-M2 open on...

Motasim, 38°C ambient is nothing special and the chiller should work under these conditions. The sun shield kit can be fitted to reduce the impact of direct sun radiation to the control and power...

Only when the software version is the same!

As far as i can remember, the two valves are basically OVE70, but their capacity has been modified (increased) by Sporlan, dedicated for York. So original OVE 70 will not match. The difference is the...

There is no such password for all York panels. The Optiview panel uses an Admin password to reset certain faults, which imprudent reset could lead to further destruction of the chiller. And yes, its...

I fully agree with that! Try to assist and feedback is appreciated............

If the chiller is new, as you said, it should be still under warranty of JCI/York. Sorry to say that, but the only thing you have to do in this case is, to call Johnson service office in your area....

You are right! RTFM is totally underestimated today. There are basically two possibilites to translate RTFM. The g-rated and the x-rated version. The g-rated version means: read the fine manual.

Is the refrigerant in the oil canister a problem? It will disappear when you run the compressor. So do that before you are going to replace the filter cartridge. Don´t worry about compressor...

Across the YCAS range are two different compressor motor current measurement strategies fitted. One with both wires per phase run through the ct module and one with just one wire per phase. This is...

YAEP is an aircooled recip chiller with PC compressors fitted. It is build in Guangzhou, China for high ambient applications. What does "failed high ambient" mean? Did it trip on high discharge...

O-Rings can start leaking under cold conditions and reseal after it warms up. I suspect the oil separator sight glasses, could be such point. But i would also check out the motor terminal gaskets on...

Thank you Screwit for the information and yes you are right we are talking about an ERTWA from Epinal. My first thought was that there is problem with either the surface / groove or the o-ring (size...

I suspect, it has something to do with the mesh width and surface. We use a system that has a mesh column inside which provides far higher surface and hence less pressure drop. The picture is taken...

I can imagine that you have an issue with the oil eductor. Does the problem appear at low load conditions or under all conditions? If it was ok in the past, you might have a damaged oil separator...

I have been contacted by a customer with a Trane RTWA. He asked me for some advice on the oil filter canister. A few weeks after Trane has replaced the filter, the canister starts leaking oil. I...

The duplex oil filter housings are crap. Had one with an original pressure drop of 14 PSIG without filter cartridges installed! The duplex housings have phased out with the style D YS and the main...

If the existing chiller does the job right, just replace it by a new one with the same cooling capacity. What is your current chiller model and the chilled water setpoint?

The thing that isn´t clear to me is, that you start with 50gpm at the chiller outlet and end with 10gpm on the chiller inlet. Is that correct? This would mean that you constantly drain water out of...

Simplyfied, the cooler is a single piece of pipe. The volume/mass flow through all three evaporators in series must be the same! The pressure in the system consits of static and dynamic pressure....

There are 4 pipes going to the compressor, suction, discharge, liquid injection and oil return from the oil separator. The solenoid valve for liquid injection is probably leaking and therefore it is...

I would set the fan control only to pressure! By pressing the OPER DATA key you can see the number of fan stages switched on in the system (software output). With two fans and low ambient option the...

Sounds promising................

http://www.youtube.com/watch?v=MqwSHpnH7HI&NR=1